«上一篇/Previous Article|本期目录/Table of Contents|下一篇/Next Article»

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

卷:

39卷

期数:

2022年06期

页码:

43-54

栏目:

建筑材料

出版日期:

2022-11-30

文章信息/Info

Title:

Experimental Study on Engineering Properties of Traditional Modified Soil and Its Application in City Wall Restoration

文章编号:

1673-2049(2022)06-0043-12

作者:

朱才辉^1,2,邱 嵩²,宋晓峰³,党 辉³,李玉波⁴

(1. 西安理工大学 省部共建西北旱区生态水利国家重点实验室,陕西 西安 710048; 2. 西安理工大学 岩土工程研究所,陕西 西安 710048; 3. 陕西省引汉济渭工程建设有限公司,陕西 西安 710011;4. 中铁第一勘察设计院集团有限公司,陕西 西安 710043)

Author(s):

ZHU Cai-hui^1,2, QIU Song², SONG Xiao-feng³, DANG Hui³, LI Yu-bo⁴

(1. State Key Laboratory of Eco-hydraulics in Northwest Arid Region of China, Xi'an University of Technology, Xi'an 710048, Shaanxi, China; 2. Institute of Geotechnical Engineering, Xi'an University of Technology, Xi'an 710048, Shaanxi, China; 3. Hanjiang-to-Weihe River Valley Water Diversion Project Construction Co. Ltd., Shaanxi Province, Xi'an 710011, Shaanxi, China; 4. China Railway First Survey and Design Institute Group Co., Ltd., Xi'an 710043, Shaanxi, China)

关键词:

传统改性土;  工程性能;  城墙修复;  模型试验;  降雨入渗

Keywords:

traditional modified soil;  engineering property;  city wall restoration;  model experiment;  rainfall infiltration

分类号:

TU973.2

DOI:

10.19815/j.jace.2021.08044

文献标志码:

A

摘要:

以某明城墙后期修复段的坍塌事故为背景,分析了该城墙坍塌的原因。基于室内试验和城墙缩尺模型试验,研究了传统改性土及素土的非饱和特性、强度软化特性及不同土类夯筑城墙的抗渗性、抗剥蚀性、抗裂性等工程性能; 采用非饱和渗流原理和边坡稳定性分析方法探索了不同改性土夯筑城墙的降雨入渗规律及整体稳定性,最终针对6类传统改性土在城墙修复中的适宜性进行了对比分析。结果表明:相对于素土,三七灰土和糯米灰膏改性土具有较良好的抗渗、抗剥蚀和抗裂等综合工程性能; 不同降雨工况下,素土夯筑城墙的入渗深度及增湿影响程度最大,入渗最深达2.9 m,三七灰土整体的入渗深度最小,约为1.0 m,其次为三合土,采用三七灰土或糯米灰膏改性土修复后城墙的整体稳定性相对较高; 降雨积水入渗是导致修复段城墙坍塌失稳的外因,新修筑夯土的用料不当及排水系统失效是导致墙体失稳的内因; 适当采用改性夯土进行古城墙修复并避免墙体顶部出现积水,将有利于提高修复后城墙的整体稳定性。

Abstract:

Taking he collapse accident of late restoration section of a Ming city wall as the background, the collapse reasons of the city wall were analyzed. Based on laboratory test and scale model experiment of the city wall, the unsaturated properties, strength softening properties of traditional modified soil(MS)and plain soil(PS)and the anti-permeability, anti-denudation and anti-cracking properties of rammed city wall with different types of soil were studied. According to the unsaturated seepage principle and slope stability analysis method, the rainfall infiltration regularity and stability of the rammed city wall with different MS were explored. The results show that compared with PS, the MS of lime soil(LS)and sticky rice and lime powder soil(SPL)have better comprehensive engineering properties such as the properties of anti-permeability, anti-denudation and anti-cracking. Under different rainfall conditions, the rainfall-influenced infiltration depth of the rammed city wall with PS is the largest, and the maximum infiltration depth is 2.9 m. The infiltration depth of rammed city wall with LS is the smallest, which is about 1.0 m and then followed by the tabia soil(TB). The overall stability of the rammed city wall with LS or SPL is relatively high. Rainfall infiltration and water accumulation on the top of the city wall are the external causes of the collapse and instability of the repaired section of the city wall. Improper materials used in the new construction of rammed earth and the failure of drainage system are the internal causes of the instability of the city wall. Appropriate use of MS to repair the ancient city wall and avoiding water accumulation on the top of the city wall will benefit improving the overall stability of the restored city wall.

参考文献/References:

[1] 国际古迹遗址理事会中国国家委员会.中国文物古迹保护准则[M].北京:文物出版社,2015.
International Council on Monuments and Sites China National Committee.Principles for the Conservation of Heritage Sites in China[M].Beijing:Cultural Relics Publishing House,2015.
[2]王旭东.中国干旱环境中土遗址保护关键技术研究新进展[J].敦煌研究,2008(6):6-12,114.
WANG Xu-dong.New Progresses on Key Technologies for the Conservation of Chinese Earthen Sites in Arid Environment[J].Dunhuang Research,2008(6):6-12,114.
[3]吴超英,李 乐,王峥嵘,等.古城墙变形破坏模式分类及识别[J].工程地质学报,2017,25(4):1132-1140.
WU Chao-ying,LI Le,WANG Zheng-rong,et al.Classification and Identification of Failure Modes of Ancient City Walls[J].Journal of Engineering Geology,2017,25(4):1132-1140.
[4]敖迎阳.平遥古城墙裂缝成因分析及处理对策[D].北京:北京交通大学,2008.
AO Ying-yang.Analysis of Causes of Cracks in the Ancient City Wall of Pingyao and the Restoring Measures[D].Beijing:Beijing Jiaotong University,2008.
[5]王旭东,石玉成,刘 琨.夯土长城墙体掏蚀失稳机理研究[J].西北地震学报,2011,33(增1):381-385.
WANG Xu-dong,SHI Yu-cheng,LIU Kun.Research on Sapping Instability Mechanism for Rammed Wall[J].Northwestern Seismological Journal,2011,33(S1):381-385.
[6]朱才辉,崔 晨,兰开江,等.砖-土结构劣化及入侵建筑物拆除对榆林卫城稳定性影响[J].岩土力学,2019,40(8):3153-3166.
ZHU Cai-hui,CUI Chen,LAN Kai-jiang,et al.The Effects of the Degradation of Brick-clay Structure and Demolition of Embedded Buildings on the Stability of Yulin City Wall[J].Rock and Soil Mechanics,2019,40(8):3153-3166.
[7]孙满利.土遗址病害的评估体系研究[J].文物保护与考古科学,2012,24(3):27-32.
SUN Man-li.A System for Evaluating the Deterioration of Earthen Sites[J].Sciences of Conservation and Archaeology,2012,24(3):27-32.
[8]朱才辉,周远强.某在役明城墙病害调研及评估方法[J].自然灾害学报,2019,28(2):60-73.
ZHU Cai-hui,ZHOU Yuan-qiang.Pathologies Investigation and Assessment Method of an Ancient City Wall in Ming Dynasty[J].Journal of Natural Disasters,2019,28(2):60-73.
[9]熊 兵.土遗址加固与保护[D].西安:西安建筑科技大学,2008.
XIONG Bing.Protection and Reinforcement of Earthen Site[D].Xi'an:Xi'an University of Architecture and Technology,2008.
[10]黄建辉.土遗址抗风化加固材料及机理初探[D].西安:西安建筑科技大学,2007.
HUANG Jian-hui.The Study on Earthen Culture Heritages Conservation Material and Its Anti-weathering Mechanism[D].Xi'an:Xi'an University of Architecture and Technology,2007.
[11]毛筱霏,赵 冬,陈 平,等.干旱地区土建筑遗址加固保护试验[J].岩石力学与工程学报,2008,27(增1):3127-3131.
MAO Xiao-fei,ZHAO Dong,CHEN Ping,et al.Consolidation Experiment on Earthen Architecture Site in Arid Region[J].Chinese Journal of Rock Mechanics and Engineering,2008,27(S1):3127-3131.
[12]唐晓武,林廷松,罗 雪,等.利用桐油和糯米汁改善黏土的强度及环境土工特性[J].岩土工程学报,2007,29(9):1324-1329.
TANG Xiao-wu,LIN Ting-song,LUO Xue,et al.Strength and Geoenvironmental Properties of Clay Improved by Tung Oil and Sticky Rice Juice[J].Chinese Journal of Geotechnical Engineering,2007,29(9):1324-1329.
[13]杨富巍,张秉坚,曾余瑶,等.传统糯米灰浆科学原理及其现代应用的探索性研究[J].故宫博物院院刊,2008(5):105-114,159.
YANG Fu-wei,ZHANG Bing-jian,ZENG Yu-yao,et al.Exploratory Research on the Scientific Nature and Application of Traditional Sticky Rice Mortar[J].Palace Museum Journal,2008(5):105-114,159.
[14]鹿 群,郭少龙,王闵闵,等.纤维水泥土力学性能的试验研究[J].岩土力学,2016,37(增2):421-426.
LU Qun,GUO Shao-long,WANG Min-min,et al.Experimental Study of Mechanical Properties of Fiber Cement Soil[J].Rock and Soil Mechanics,2016,37(S2):421-426.
[15]米海珍,黄建明,胡燕妮.三七灰土本构关系及强度性质试验[J].建筑科学与工程学报,2014,31(2):112-118.
MI Hai-zhen,HUANG Jian-ming,HU Yan-ni.Experiment on Constitutive Relation and Strength Properties of Three-to-seven Lime-loess[J].Journal of Architecture and Civil Engineering,2014,31(2):112-118.
[16]BURROUGHS S.Soil Property Criteria for Rammed Earth Stabilization[J].Journal of Materials in Civil Engineering,2008,20(3):264-273.
[17]JAYASINGHE C,KAMALADASA N.Compressive Strength Characteristics of Cement Stabilized Rammed Earth Walls[J].Construction and Building Materials,2007,21(11):1971-1976.
[18]PRABAKAR J,SRIDHAR R S.Effect of Random Inclusion of Sisal Fibre on Strength Behaviour of Soil[J].Construction and Building Materials,2002,16(2):123-131.
[19]ACHENZA M,FENU L.On Earth Stabilization with Natural Polymers for Earth Masonry Construction[J].Materials and Structures,2007,39(1):21-27.
[20]李最雄,赵林毅,孙满利.中国丝绸之路土遗址的病害及PS加固[J].岩石力学与工程学报,2009,28(5):1047-1054.
LI Zui-xiong,ZHAO Lin-yi,SUN Man-li.Deterioration of Earthen Sites and Consolidation with PS Material Along Silk Road of China[J].Chinese Journal of Rock Mechanics and Engineering,2009,28(5):1047-1054.
[21]刘士雨,俞 缙,曾伟龙,等.微生物诱导碳酸钙沉淀修复三合土裂缝效果研究[J].岩石力学与工程学报,2020,39(1):191-204.
LIU Shi-yu,YU Jin,ZENG Wei-long,et al.Repair Effect of Tabia Cracks with Microbially Induced Carbonate Precipitation[J].Chinese Journal of Rock Mechanics and Engineering,2020,39(1):191-204.
[22]BUI Q B,MOREL J C,VENKATARAMA REDDY B V,et al.Durability of Rammed Earth Walls Exposed for 20 Years to Natural Weathering[J].Building and Environment,2009,44(5):912-919.
[23]HALL M R.Assessing the Environmental Performance of Stabilised Rammed Earth Walls Using a Climatic Simulation Chamber[J].Building and Environment,2007,42(1):139-145.
[24]DONG L,ZHOU H L,LI H X,et al.Climate Chamber Experiment-based Thermal Analysis and Design Improvement of Traditional Huizhou Masonry Walls[J].Sustainability,2018,10(3):694.
[25]崔 晨.某城墙土遗址病害及改性黄土修复后稳定性分析[D].西安:西安理工大学,2019.
CUI Chen.Disease of a City Wall Soil Site and Stability Analysis of Modified Loess After Restoration[D].Xi'an:Xi'an University of Technology,2019.
[26]ZHU C H,WANG S H,MA Z Y,et al.Model Investigation of Anti-seepage Measures for the Foundation of a Heritage Building Based on Soil Improvement[J].International Journal of Architectural Heritage,2022,16(9):1414-1431.
[27]李 华,李同录,江睿君,等.基于滤纸法的非饱和渗透性曲线测试[J].岩土力学,2020,41(3):895-904.
LI Hua,LI Tong-lu,JIANG Rui-jun,et al.Measurement of Unsaturated Permeability Curve Using Filter Paper Method[J].Rock and Soil Mechanics,2020,41(3):895-904.
[28]卢 珊,张宏芳,屈 直,等.1961—2015年陕西省不同等级降水事件变化特征[J].气象与环境科学,2018,41(1):77-85.
LU Shan,ZHANG Hong-fang,QU Zhi,et al.Variation Characteristics of Precipitation Events in Different Levels in Shaanxi Province from 1961 to 2015[J].Meteorological and Environmental Sciences,2018,41(1):77-85.

相似文献/References:

备注/Memo

备注/Memo:

收稿日期:2021-08-14
基金项目:国家自然科学基金项目(52279110); 陕西省自然科学基础研究计划项目(2019JLP-22); 陕西省重点研发计划项目(2022SF-197)
作者简介:朱才辉(1983-),男,陕西商南人,教授,工学博士,E-mail:zhucaihui123@163.com。

常用功能

更新日期/Last Update: 2022-12-20